great looking wheels. maybe im in the minority here in saying i think that maybe the wheels dont "match" as well as stock, but they give it a much more aggressive look, IMHO, and they are definately something im looking into. as for that turbo on the exhaust thing you are talking about, i did some research on that myself a few weeks ago because, as some of you may know, im power hungry. what i read was that they primarily run on v8's, trans am's and firebirds. i forgot the website, but ill look for it. they spin very low boost, and despite a bunch of arguments, its been pretty much aknowledged that they spool at a decent rpm, for you low end ower fans. i like reving it up personally, and that system works well for that as well. the main complaints were that the turbos hang so low because they are literally attached to the exhaust that they can get damaged on speed bumps and driveways. as for cost, not too sure either. ill do some research today at work and tell you what i can find out.